Mathematics Middle School

A student mixes two substances in a large beaker. After two hours, the student sees that the substances have separated again.

These substances MOST LIKELY differ in their —

A Student Mixes Two Substances In A Large Beaker. After Two Hours, The Student Sees That The Substances

Answers

Answer 1

Answer:

densities

Step-by-step explanation:

Answer 2
The two substances differentiate in the densities that each of them hold.

Related Questions

Answer the area of the trapezoid

Answers

Answer:

8700 meters

Step-by-step explanation:

8700 meters!!!!!!!!!!

The fees for a biochemistry major are $1,728. To major in biochemistry. Toby requires 144 credit hours of coursework. How can he calculate the cost of the fees per credit hour? What is the cost of the fees per credit hour?​

Answers

Answer:

144x=1728

Step-by-step explanation:

144 credit hours and x will be the cost per hour equals the total 1728. Its 12 dollars an hour

1728/144 = 12 dollars : 1 hour

Evaluate x + y + z for x = 2, y = -3, z = -4.

Answers

Answer:

-5

Step-by-step explanation:

first you switch the letters for numbers and add the numbers on paper, calculator, or you just think it all out in your head :D

Answer:The answer would be-5

Answer pls hard question

Answers

What do you need help with? There’s is no question nor is there a picture with a question
where is the question?

Carlos has $45 in his lunch account. He spends $2.25 each day on lunch, d. Elijah has $50 in his lunch account. He spends $2.50 each day on lunch, d. The two boys used all the money in their lunch account on the same day. Which equation could be used to determine the number of lunches each boy was able to purchase with the amount of money they had in their account?

Answers

Answer:

$45.00 divided by $2.25 or $50 divided by $2.50

Step-by-step explanation:

because this would determine the unit rate. Which is how many lunches the had. They had the total of Carlos would get 20  Elijah would also get 20. They would have an even amount of meals the paid for.

Answer:  Carlos had 4 day to eat lunch before his money ran out and Elijah also had four day so they both got 8 meal in total.

Step-by-step explanation: it they both got breakfast and lunch each day then that make four day to eat and also just do 2.25 time 5 day of school then divide the sum of what you got by $45 you should get 4 as for Elijah do 2.50 time 5 day of school then divide $50 by what your sum should be and you also get 4 day for him

see watch and  learn

2.25 time 5= 11.25

$45 divided by ll.25=4

2.50 time 5=12.5 or 12.50

$50 divided by 12.50=4 too

A bike trail is 9 1/3 miles long. On the bike trail, signs are placed every 2 1/3miles to let riders know the distance remaining. How many signs are along the bike trail?

A.) 2 signs

B.) 30 signs

C.) 4 signs

D.) 10 signs

Answers

the correct answer is D

Answer: C) 4 Signs

Step-by-step explanation:

9 1/3 ÷ 2 1/3 = 4

how is 6/4 simplified to 1 1/2. I need a full explantion!! PLEASE HELP!!!!

Answers

Answer:

6 goes into 4 one time while still having 2 left over leaving you with 1 and 1/2

Step-by-step explanation:

that's the simplest its gonna get

I honestly don’t know

im giving free brainlest only if you give it to me

Answers

Answer: betttttttttttttttttttttttttttt

Answer:

ok i will

Step-by-step explanation:

The area of a parallelogram is the same as the area of a square. The base of the parallelogram is twice the length of its height. The side of the square is 2 less than the height of the parallelogram

Area of a parallelogram: a = base • height

Area of a square: a = (side)2

1. variable h = parallelogram height

2. square area + parallelogram area

3. equation: (h – 2)2 + (2h • h)
The area of a parallelogram is the same as the area of a square. The base of the parallelogram is twice the length of its height. The side of the square is 2 less than the height of the parallelogram

Area of a parallelogram: a = base • height

Area of a square: a = (side)2

1. variable h = parallelogram height

2. square area + parallelogram area

3. equation: (h – 2)2 + (2h • h)

Analyze Jasper’s work. What was his mistake?

A The variable should be the length of the square.
B The areas of the square and parallelogram are equal.
C The area of a square is 4(h – 2).
D The area of a parallelogram is 2h + h.

Answers

Answer: The areas of the square and parallelogram are equal (B)

Step-by-step explanation:

I hope this is ok

Answer:

The areas of the square and parallelogram are equal (B)

Step-by-step explanation:

Which expression can be used to find 80% of 120?
A.(0.8) (24)
B.(0.2) (120)
C.(0.8) (120)
D.(0.2) (24)
PLEASE HELP I'M BEGGING MY TEST IS TIMED

Answers

Answer:

C.(0.8) (120)

Step-by-step explanation:

0.8 = 80%

of means multiply, therefore, 0.8 x 120 equals 80% of 120.

Answer:

C. (.8)(120)

Step-by-step explanation:

that is how you find percent of a number

The table below shows prices for breakfast items at a food truck. Jeffrey ordered 2 breakfast tacos with bacon, an order of potato hash and a cup of coffee. The sales tax for the order was $0.75. He paid for his breakfast with a $10 bill. Breakfast Menu Item Price 1 Breakfast taco - egg & cheese $2.00 1 Breakfast taco - with bacon $2.25 1 Order of potato hash $1.50 Cup of coffee $0.50 How much change should Jeffrey receive from a $10 bill? O A $2.75 O B. $6.50 OC. $8.50 OD. $4.25​

Answers

Answer: A.$2.75

Equation: 2(2.25)+1.50+0.50+0.75

Because he bought 2 breakfast tacos with bacon and the price of that is $2.25 for 1 then he bought a potato hash for $1.50 and a cup of coffee for $0.50 and the tax is $0.75

Answer: 2.75. In change

Step-by-step explanation:

First add the two breakfast tacos, since one is 2.25$ Two would be 4.50$ Next add the potato hash and cup of coffee, you should get 2.00$ After that add the tacos with the coffee and potato hash which equals 6.50$ and don't forget to add your 0.75. Tax to the 6.50$ once you get 7.25. You need to do 7.25. - 10.00 which would get you your change of 2.75$

Two groups performed an experiment separately by tossing a coin in the air. Group P performed 50 trials and group Q performed 100 trials. Each group recorded the results in the table below:

Group Heads Tails
P 35 15
Q 53 47
What conclusion can be drawn about the number of trials and the probability of the coin landing on heads or tails? (5 points)

Group of answer choices

The experimental probability is closer to the theoretical probability for group Q than group P.

The experimental probability and the theoretical probability for group Q is the same.

The experimental probability and the theoretical probability for group P is the same.

The experimental probability is closer to the theoretical probability for group P than group Q.

Answers

Answer:

Are you still in the test? If so I am guessing (not 100% sure) the answer is A.

Step-by-step explanation:

A. The experimental probability is closer to the theoretical probability for group Q than group P.

This may be the answer because, 100 trials is twice the amount of trials in the experiment of p. Theoretically people would think 100 trials is better because more results concludes to an more accurate average. The probability  is better for p because the smaller amount of trials means no changes within a project. You can control the variables.

Hopefully this is right!

A recipe needs 834 millileters of water as one of its ingredients.

How many liters of water does the recipe need?


A.0.0834 L

B.0.834 L

C.8.34 L

D.834,000 L

Answers

If a recipe needs 834 milliliters of water as one of its ingredients.  How many liters of water does the recipe need will be: B.0.834 L

Given:

Millimeter of water=834 milliliters

Liters of water=?

Based on measure of volume 1 liter =  1000 milliliters

Now let determine how many liters of water does the recipe need

Liters of water=834 millimeter÷1000 milliliters

Liters of water=0.835 Liters

Inconclusion if a recipe needs 834 milliliters of water as one of its ingredients.  How many liters of water does the recipe need will be: B.0.834 L

Learn more here:

https://brainly.com/question/22597247

Horatio's Haunted House
pls help fast

Answers

Answer:

Step-by-step explanation:

Every 1 hour, 7 screams are caused

the first part is 6 hours, so that means we multiply 6 x 7, which is 42

The second one has 56 screams, so this means we divide 56 and 7 to get 8

The last one is the same as the first one, we multiply 7 and 12 to get 84

Hope this helps : ]

For 6 hours, there are 42 screams, for 8 hours, there are 56 screams and for 12 hours, there are 84 screams.

What are Proportions?

A proportion is an equation in which two ratios are set equal to each other.

Given that two number lines, one is moving like, 0,1,2,...

And second one is moving like 0,7,14....

Therefore, studying the number lines, we get,

6 hours = 7*6 = 42 screams

8 hours = 7*8 = 56 screams

12 hours = 7*12 = 84 screams

Hence, For 6 hours, there are 42 screams, for 8 hours, there are 56 screams and for 12 hours, there are 84 screams.

For more references on Proportions, click;

https://brainly.com/question/2548537

#SPJ2

find the measure of each angle

Answers

Answer:


Find the measures of each angle.

When angles are complementary, the sum of their measures is 90 degrees. Two complementary angles have measures of 2x-10 degrees and 3x-10degrees.

Make a table of ordered pairs for the equation.
y = 1/2 x -3 Example: ( 0, 0)

Answers

I hope this helps :/

Answer:

1 : -2.52 , -23 : -1.54 , -15 : -0.56 , 0

Step-by-step explanation:

by starting to put the value of x as 1 and continuing up to 6 we calculate the value of y and therefore get the given table above

(5/2) d - 3/2 = -1/2

Answers

Answer:

d=2/5

Step-by-step explanation:

the answer for this equation is d=2/5

I need help with the question in the photo!! Thanks!

Answers

The answer is B

Give me a thanks
37.45 kilometers into meters... hm
The answer is D. u move the the decimal 3 to the left . Comment if u want a better explaination, I’m sorry I couldn’t explain it more; but I hope this helps!!!

I NEED THIS LIKE, RIGHT NOW. THIS IS DUE AT 3:00

Mark used a number line to model dividing 2 3 by 3. He divided the number line from 0 to 1 in 3 equal sections, and then divided each of those sections into 2 equal parts. Mark says 2 3 ÷ 3 is 1 3 . Is his answer correct? Explain why or why not.

(NO SAMPLE RESPONSES. )

Answers

An answer   no he is not correct because 23 divded by 3 is 7

Step-by-step explanation:

Answer:

He is wrong.

Step-by-step explanation:

He is wrong because if you use a calculator to find the answer to 23 ÷ 3, The answer it gives you is 7.66666666667, not 13.

Did I get this answer right?

Answers

yes you did it that’s right

Answer:

Yes, you did get this correct. Great job!

Step-by-step explanation:

In order to do this, just multiply straight across. 2x2=4 and 3x7=21. You are definitely correct.

Have an amazing day:)

9.8x+17=7.6x-16
??????

Answers

2.8867 your welcome

Answer:

2.8867

Step-by-step explanation:

9.8x+17=7.6x-16

We move all terms to the left:

9.8x+17-(7.6x-16)=0

We get rid of parentheses

9.8x-7.6x+16+17=0

We add all the numbers together, and all the variables

2.2x+33=0

We move all terms containing x to the left, all other terms to the right

2.2x=-33

x=-33/2.2

x=-2.8867

brown rat and opossum

hamster and lemming

opossum and prairie dog

Determine if each pair of animals has the same ratio of body length to tail length. Explain your reasoning.

Answers

Answer:

Hamster and lemming has about the same body to tail ratio. Since, their body to tail ratios is about 20%. However opossum and prairie dog do not at all. The opossum is about 73.47% and the prairie dog is about 14.29%.

Step-by-step explanation:

Answer:

Hamster and lemming have the same ratio of 1/5 and the others are unequal.

What is the area of this triangle?

Answers

Answer:

Just need points. 27

Step-by-step explanation:

29.5 i think so shshshehshshhsha

If a puppet requires 3/4 yard of material, how many puppets can be made form 9 yards of material?

Answers

Answer:

12 puppets

Step-by-step explanation:

9 divided by 3/4

=12

Answer:

12 puppets.

Step-by-step explanation:

In order to figure this out, simply take 9 and divide it by 3/4:

9 ÷ 3/4 = 12

7. John made a pattern with 9 toothpicks in
the 1st figure, 14 in the 2nd figure, 19 in
the 3rd figure, and 24 in the 4th figure.
a) Write an algebraic expression for the
nth term.
b) Use a scatter plot to determine the figure
number of the figure with 94 toothpicks.
c) Check your result in part (b) by
substituting for the variable and
evaluating the algebraic expression.

Please help me with all questions and guide me through!

Answers

The answer is 21/ a hope it helps???

Which of the following statements is NOT true? Click all that apply.

The rate of change and the constant of proportionality are the same value in a proportional relationship.
The rate of change and the constant of proportionality are the same value in a proportional relationship.

The value of yx and the value of are different in a proportional relationship.
The value of y over x and the value of are different in a proportional relationship.

The graph of a proportional relationship is represented by a straight line only.
The graph of a proportional relationship is represented by a straight line only.

The constant of proportionality and the k-value are the same value in a proportional relationship

Answers

Answer:

The constant of proportionality and the k-value are the same value in a proportional relationship

Answer:

The constant of proportionality and the k-value are the same value in a proportional relationship

 

Step-by-step explanation:

 

Step-by-step explanation:

The second to last one

Determine whether the ratios form a proportion.
A) Yes, Proportional
B) No, Not Proportional

Answers

Answer:yes proportional

Answer:

A

Step-by-step explanation:

Hope this helps! Please consider making me brainliest!!!!!!!!

It says I keep getting messages, but I cant message anyone, and when I go to the messaging tab, nothing is there. Anybody have an explanation?

Answers

it’s probably just a glitch try restarting the app maybe

PLEASE HELP ILL GIVE YOU 5 STARS, AND BRAINLIEST !!! (FOR ASSESSMENT)


The plesiosaur’s stomach had 2.25 kilograms of gastroliths. The largest stone was 0.074 meter long, 0.048 meter wide, and 0.022 meter thick.
3. Write the length of the largest stone as a number name and in expanded form.

Answers

Answer:

stone called gasthroliths,the largest one is 0.074

Step-by-step explanation:

Answer:

the person above me is correct

Step-by-step explanation:

the person above meh is correct

x+5/2 + x−3/3 =3 1/6

Answers

the answer is x=-1/2
I think the answer is x = -1/2
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